Tightener for automobile-chains.



M. BOES.

TIGHTENER FOR AUTOMOBILE CHAINS.

APPLICATION FILED FEB. 24. 1911.

1,235,762. J Pate'ntdAug. .7,1917.

anmmto z M ILTON B055 (Ilium p 1 MILTON BOES, OF LOUISVILLE, KENTUCKY;

TIGHTENER FOR AUTOMOBILE-CHAINS.

Specification of Letters Patent.

Patented Aug. '7, 1917.

Application filed February 24, 1917. Serial No. 150,834.

To all whom it may concern:

Be it known that MILTON BoEs, a citizen of the United States, residing at Louisville, in the county of Jefferson and State of Kentucky, has invented certain new and useful Improvements in Tighteners for Automobile-Chains, of which the following is a specification, reference being had to the accompanying drawings. i

This invention relates to tightening devices or strain applying devices, and particularly to means for tightening chains upon automobile tires.

At the present time it is exceedingly diflicult to tighten the chains ordinarily used in automobile tires to prevent them from skidding and the general object of this invention is to provide a very simple and effective means for this purpose;

And a further object is to provide a device of this character so constructed that the chain will be tightened with relatively great power.

A further object is to provide a construction of this character which is very simple, easily used, and in which the leverage applied to the jaws or hooks which draw the chaintogether is very great.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, in which:

Figure l is a side elevation of my improved chain tightening device.

Fig. 2 is a top plan view of the construction shown in Fig. 1.

Fig. 3 is a like view of Fig. 1, showing the hooks 19 and 22 drawn together.

Referring to these drawings, it will be seen that my device comprises a handle bar 10 which constitutes a lever and which is provided with a straight portion 11 and a handle portion 12, which is slightly deflected from the line of the straight portion 11 and is formed with a perforation 13. The handle portion 10 is provided at the junction between the deflected portion 12 and the portion 11 with the laterally extending pivot stud 14 and pivotally mounted upon this stud is a second lever 15 having a straight portion which is pivoted intermediate its ends upon the stud 14 and having an angularly bent portion 16 deflected at its extremity as at 17 and adapted to coact with the handle 12. This deflected handle 16 is formed with a perforation 18 which is adapted to register with the perforation 13. The free extremity of the lever 15 is bent to provide a hook 19. The extremity of the straight portion 11 is formed with the laterally projecting pivot stud 20 and pivotally mounted upon this stud 20 is an arm 21 formed at its rearextremity with a hook 22, the hook 22 passing the hook 19, that is the bills of the hooks being directed toward each other. A bar 23 is perforated at its ends for engagement with the studs 14 and 20 and these studs 14 and 20 are perforated at their extremities for the passage of cotter pins'24.

Pivotally connecting the arm 21 with a handle lever 15 is a connecting rod 25 which connecting link or rod 25 is approximately Z-shaped in form, the extremities of the member 25 being laterally bent as at 26 to engage through a perforation 27 formed in the lever 15 and with a perforation 28 formed in the arm 21 just above the hook. These laterally bent portions 26 are perforated for the passage of cotter pins 29.

In the practical use of my invention, the hooks 19 and 22 are engaged with the links on the separated ends of the tire chain and then the handles 12 and 16 are forced toward each other thus causing the hooks 19 and 22 to approach each other until they are in a position shown in Fig. 3. It will be seen that if the handle lever 10 be held firmly from movement then the downward pressure on the handle 16 or pressure toward the handle 12 will not only cause the hook 19 to move toward the forward end of the device, but will cause the hook 22 to move toward the rear end of the device or hook 19. The connection is such that the two hooks move together and evenly and the pull on the arm 21 is equal to the pressure applied on the hook 19.

It will be seen that the device is very simple, can be easily used and that it is very strong. It will further be seen that the parts may be readily disconnected whenever desired so as to pack into small compass.

Having thus described my invention, what I claim is 1. A chain tightener of the character described, comprising a relatively straight member having a handle shank, a lever pivoted to the straight member intermediate its ends, said lever having a handle shank at one end and a hook at the other end, an arm pivoted to the free end of the handle shank and having a hook at its free end confronting the first named hook, and arod pivotally connected to the arm and to said lever between its point of pivotal connection with the handle shank and the handle extremity of the lever.

2. A device of the character described, comprising a relatively straight handle shank, an arm pivoted to the extremity of the handle shank and having a rearwardly facing hook, a lever pivoted to the handle shank and having a forwardly facing hook at one end and at its other end formed with a handle, and a link pivotally connecting the lever with the arm, the handle shank extending between the points of the pivotal connection of the link, said link being ap proximately Z-shaped in form.

3. A device of the character described, comprising a relatively straight handle shank having at its extremity a laterally extending pivot stud and formed midway of its ends with a second laterally extending pivot stud, each of said pivot studs being perforated at its extremity, an angular lever having a perforation intermediate of its ends through which the second named pivot stud extends, the lower end of the lever being formed with a hook, an arm pivotally mounted at one end upon the first named pivot stud, the extremity of the arm being formed with a hook, the two hooks confronting each other, and a Z-shaped link pivotally connected to the arm inward of the hooked extremity thereof extending rearward, then laterally formed of the first named pivot stud and then rearward and pivotally connected to the lever, and cotter pins passing through the perforations in the pivot studs.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

MILTON BOES.

Witnesses:

VVALLAOE A. MCKAY, E. L. MITCHELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

